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Torque and switching in the bacterial flagellar motor. An electrostatic model.

Abstract:

A model is presented for the rotary motor that drives bacterial flagella, using the electrochemical gradient of protons across the cytoplasmic membrane. The model unifies several concepts present in previous models. Torque is generated by proton-conducting particles around the perimeter of the rotor at the base of the flagellum. Protons in channels formed by these particles interact electrostatically with tilted lines of charges on the rotor, providing "loose coupling" between proton flux and...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Journal:
Biophysical journal
Volume:
64
Issue:
4
Pages:
961-973
Publication date:
1993-04-05
DOI:
EISSN:
1542-0086
ISSN:
0006-3495
URN:
uuid:b20befca-ae78-402a-99ac-e798047a43af
Source identifiers:
29529
Local pid:
pubs:29529

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